Ive had an actiontech modem model gt704wgb for 5-6 years. Im on a dsl plan that alows download speeds up to 15mbps. Ive been speed testing a lot for the last couple of months, and I generally get speeds around 5mbps. I sometimes get lower, and a little higher. Ive called customer service a handful of times and they recently said they optimised the line, because they noticed some problems. Im still getting slow speeds though. The say everything looks fine with m signal and everything. Do you think my problem be with my modem, because it is old, and technology might have surpass its capabilitys?